Lucy Lost
7.7
Set in 1915 in the Isles of Scilly just off the Cornish coast, a young girl named Lucy is raised by a clan of fishermen she knows not to be hers. However, she remembers little else about her past, and as the Great War rages down on the continent, a chance encounter with the mysterious girl her own age soon helps Lucy put back the pieces of her own life’s story and come to better understand her place in the world.
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Cast
25 people
Charlie Rosenzweig
Lucy (voice)
No other roles listed
Zach Valentin-Dattas
Alfie (voice)
No other roles listed
Jessica Monceau
Mary (voice)
Known for
The Painting
Quentin Faure
Jim (voice)
Known for
Furies
Versailles
Keanu Peyran
Zeb (voice)
Also in
Nina and the Hedgehog's Secret
Champion
Léonie Didier-Chiara
Elizabeth (voice)
No other roles listed
Haïly Yssembourg Da Cunha
Polly (voice)
Also in
Once Upon My Mother
Rafael Didier-Chiara
Kenny (voice)
No other roles listed
Gustave Briere
Willy (voice)
No other roles listed
Benjamin Penemaria
Dave (voice)
Known for
Drops of God
Nicolas Marié
Mr Beagley (voice)
Known for
Bye Bye Morons
9 Month Stretch
Leslie Lipkins
Miss Nightingale (voice)
Also in
The Sleeping Beauty
Relai
Olivier Clert Director · Helen Blakeman Screenplay Michael Morpurgo Author
First release May 19, 2026 · Produced in France · Production Gao Shan Pictures
Production
Studio Xilam
Production
Gao Shan Pictures
Production
France
Produced in
Languages
Original title
Le Mystère Lucy Lost
Original language
French
Spoken on screen
French
Release dates
France · May 19, 2026
Premiere · Cannes Film Festival
France · October 28, 2026
Theatrical
No release date listed for United States.
China
June 17, 2026 · Premiere · Shanghai International Film Festival
France
June 22, 2026 · Premiere · Annecy International Animation Film Festival
June 30, 2026 · Premiere · La Rochelle International Film Festival
Germany
October 22, 2026 · Premiere · Hof International Film Festival
April 1, 2027 · Theatrical
Hong Kong SAR China
August 21, 2026 · Premiere · Summer International Film Festival
Poland
September 25, 2026 · Premiere · Tauron Young Horizons International Film Festival
Singapore
October 10, 2026 · Premiere · Animation Nation
South Korea
October 23, 2026 · Premiere · Bucheon International Animation Festival
Spain
November 6, 2026 · Theatrical
Taiwan
October 9, 2026 · Premiere · Taichung International Animation Festival
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